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台式机、笔记本、平板电脑、智能手机……虽然我们身边的电子产品越来越多,功能也各种各样,但这些家伙身上的按键标志却几乎一样!那么,都设计成这样有什么特殊的含义吗?欢迎来本期知识快餐店一探究竟!不管什么电器都得有电源开关,一说电源开关,肯定就是那个经典的“竖杠和圆圈”的标志了。关于它的历史,可以追溯到二战时期!那时电子科技开始迅猛发展,人们用二进制的“0”和“1”来表示电路的断开和开启,后来美国电
Desktops, Notebooks, Tablets, Smartphones ... Although we have more and more electronics around us and a wide variety of features, the buttons and keys on these guys are almost the same! So, are there any special What is the meaning? Welcome to the current knowledge of fast food restaurant to explore! No matter what the electrical have to have the power switch, said the power switch, it is certainly the classic “vertical bars and circles” logo. About its history, dating back to World War II! At that time the rapid development of electronic technology, people use the binary “0 ” and “1 ” to indicate the circuit open and open, and later the United States